I recently sold my home. I didn't take the plunge with smart switches, but I had Nest thermostats and Nest smoke alarms. I wish I either removed everything before putting my house on the market, or excluded them all from the sale. The buyer was confused, and the Nest smoke alarms needed to be replaced prior to closing. The Nest smoke alarms were fine, but due to local fire codes, I needed to have wifi running at insp…
Fire code requires that fire alarms be networked to alert people in all rooms in the event of a fire. Older un-networked units are grandfathers until you begin replacement. Wifi networking is allowed by the code, but for obvious reasons, the inspector has to verify that it works and is set up correctly which requires running wifi. Personally I would not purchase a home that was configured with nest or other home auto…
It's not that hard to change a thermostat and smoke alarm. "Dumb" smoke alarms and thermostats are very inexpensive and easy to install. Buy a home for the structure and location. You can always change the few things you don't like.